Detail publikačního výsledku

Chloride and combined chemical attack of saline solutions on modified oil well cement pastes

COMPELOVA, K.; TAWFIK, T.; BUNOVA, L.; SLANY, M.; MÁSILKO, J.; KUZIELOVA, E.

Originální název

Chloride and combined chemical attack of saline solutions on modified oil well cement pastes

Anglický název

Chloride and combined chemical attack of saline solutions on modified oil well cement pastes

Druh

Článek WoS

Originální abstrakt

The effect of complex geothermal water composition in comparison with that of a single NaCl solution was studied on cement pastes prepared by partial substitution of cement with silica fume and metakaolin in different proportions. After 90 days of hydration in solutions or water, TGA, XRD, FTIR, ion chromatography, SEM, volume change, and compressive strength (CS) measurements were used to evaluate the impact of solutions on the systems. Higher Al3+ content in blended samples resulted in a greater ability to bind chlorides in Cl-AFm. A lower amount of free Cl- restrained delayed ettringite formation. Less significant volume changes together with the formation of C-(A-)S-H phases promoted by both solutions led to lower porosities and higher CSs than those of referential paste. NaCl solution showed a bigger negative influence than the geothermal one.

Anglický abstrakt

The effect of complex geothermal water composition in comparison with that of a single NaCl solution was studied on cement pastes prepared by partial substitution of cement with silica fume and metakaolin in different proportions. After 90 days of hydration in solutions or water, TGA, XRD, FTIR, ion chromatography, SEM, volume change, and compressive strength (CS) measurements were used to evaluate the impact of solutions on the systems. Higher Al3+ content in blended samples resulted in a greater ability to bind chlorides in Cl-AFm. A lower amount of free Cl- restrained delayed ettringite formation. Less significant volume changes together with the formation of C-(A-)S-H phases promoted by both solutions led to lower porosities and higher CSs than those of referential paste. NaCl solution showed a bigger negative influence than the geothermal one.

Klíčová slova

Combined chemical attack, Chloride attack, Silica fume, Metakaolin, Geothermal water

Klíčová slova v angličtině

Combined chemical attack, Chloride attack, Silica fume, Metakaolin, Geothermal water

Autoři

COMPELOVA, K.; TAWFIK, T.; BUNOVA, L.; SLANY, M.; MÁSILKO, J.; KUZIELOVA, E.

Vydáno

01.07.2025

Periodikum

Journal of Thermal Analysis and Calorimetry

Svazek

150

Číslo

14

Stát

Maďarsko

Strany od

10821

Strany do

10838

Strany počet

18

URL

https://link.springer.com/article/10.1007/s10973-025-14483-3

BibTex

@article{BUT200506,
  author="{} and  {} and  {} and  {} and Jiří {Másilko} and  {}",
  title="Chloride and combined chemical attack of saline solutions on modified oil well cement pastes",
  journal="Journal of Thermal Analysis and Calorimetry",
  year="2025",
  volume="150",
  number="14",
  pages="10821--10838",
  doi="10.1007/s10973-025-14483-3",
  issn="1388-6150",
  url="https://link.springer.com/article/10.1007/s10973-025-14483-3"
}